<!DOCTYPE html>
<html>

<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
  <title>Math </title>
  <script type="text/javascript">
    document.write(Math.round(3.3) + "<br>");
    document.write(Math.round(-0.1) + "<br>");
    document.write(Math.round(-9.9) + "<br>");
    document.write(Math.round(8.9) + "<br>");
  </script>
</head>

<body>
</body>

</html>